Math Practice 101
Homework Explained - Math Practice 101

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Grade 5 HMH Go Math - Answer Keys
Triangles


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Triangles

Classify each triangle. Write isosceles, scalene, or equilateral. 
Then write acute, obtuse, or right.

  • Question 1 (request help)

    None of the side measures are equal. So, it is scalene. There is a right angle, so it is a right triangle.

A triangle has sides with the lengths and angle measures given. 

Classify each triangle. Write scalene, isosceles, or equilateral. Then write acute, obtuse, or right.

  • Question 5 (request help)

    sides: 44 mm, 28 mm, 24 mm
    angles: 110°, 40°, 30°
  • \(\triangle\)   
    \(\angle\)   
  • Question 6 (request help)

    sides: 23 mm, 20 mm, 13 mm
    angles: 62°, 72°, 46°
  • \(\triangle\)   
    \(\angle\)   

Problem Solving

  • Question 7 (request help)

    Mary says the pen for her horse is an acute right triangle. Is this possible? Explain.
    • Yes
    • No
  • Question 8 (request help)

    Karen says every equilateral triangle is acute. Is this true? Explain.
    • Yes
    • No

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